Double-thrust ball-bearing.



A. HIRTH.

DOUBLE THRUST BALL BEARING.

APPLICATION FILED OUT. 13,1906.

' Patented Aug. 10, 1909.

UNITED sTA' lEs PATENT OFFICE.

ALBERT BIRTH, OF CANNSTATT, GERMANY, ASSIGNOR TO ERNST GUSTAV HOFFMANN, OF

NEW ROCHELLE, NEW- YORK; ALFRED W. KIDDLER.AND AMALIE MATHILDE BAU- MANN, EXEGUTORS OF SAID ERNST GUSTAV HOFFMANN, DECEASED.

D BLE-minus! BALL-BEARING. 7

Specification of Letters Patent.

Patented Aug. 10, 1909.

To all whom it may concave:

' Be it known that I, ALBERT HIRTH, a citizen of the German Empire, residing at Cannstatt, in the Kingdom of \Vurtemberg, Empire of Gern1any,,have invented certain new and useful Improvements in Double-Thrust Ball-Bearings, of which the following is a -description, reference being had to the .ac-

retained, and which cages are arranged on.

both sides of a collar fastened to the rotating shaft, said collar having grooves on both sides to form tracks for the balls. The supports for the balls on the other side consist of similarly grooved disks, the outer surfaces of which are aplproximately segments of a sphere so that t ey may adjust themselves automatically on suitable or correspondingly shaped seats inside the casing and distribute.

the thrust uniformly among the whole of the balls. This type or disk, forming a part of a ball bearin with a curved abutment seat is already wll known. When the casing is formed in parts some means, such as an interior lining or .sleeve, are employed to connectsame.

By reason of the fact that the ball bearing is inclosed in a casing having an external cylindrical or equivalent surface, the whole part is easily handled, and it can be employed 1n most positions and places where bearin s are required and be readily and securely he (1 in lace.

the accompanying drawing is illustrated a form of bearing constructed according to v the invention.

In such drawing :Figure 1 is a side view of a double thrust ball bearing, according to 7" ,this invention, showing the block holding the hearing in section;'Fig. 2 is an end view of Fig/1, partly in sectlon, and -Fig. 3 is a similar view to Fig. 1 but in section. I The ball races consist-of race rings a a havtheir outer surfaces formed each approximatel as a'segment of a sphere and of the collar which 1s carried by a sleeve b fixed on the shaft cl in some suitable Way, as

for exam is by the aid of anut e and a. screwed on to the washer, t ie former bein threaded end f of the sh 't d which is stepped at that part. The balls are held loose y in cages 9 between the race rings and the collar respectively. The separate parts of the ball hearing are held together by the parts or on s c, which meet in a plane transverse or substantially transverse to the axis and form the housin or casing which parts or cups or one of them have a cylindrical exterior surface, While the inner surface of the said parts or cups is beveled or curved to form abutments and receive the curved surface of the race rings a. The means for securing the collar b to the shaft, as will be observed, are accessible externally of the casing so that the complete bearing can be applied to or removed from the shaft without separatin or adjusting the parts. The two parts of t e housing in this case are held together by a tightly fitting internal sleeve 71. which engages equally both halves, so that the casin and the parts of the bearing when assemble are securely held together.

I am aware that it has heretofore been pro osed to make a double thrust bearing wit an exterior cylindrical surface to the casing and a spherical seated end abutment, I and in another case two such abutments, one

of which was removable to insert the parts, and also tomake a bearing havin a cylindrical surface with removable end a utments separate therefrom, such :abutments'forming themselves the ball races.

Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is:

1. A ball bearing com rising two sets of balls, a collar interpose between the two sets of balls, race rings having ball races, a casing formed in two parts meeting in a plane transverse to the axisxand each having an end wall which forms an abutment for the corresponding race ring, andmeans ac-- cessi'ble externally 0f the casing for securing Q p 7 930,600 r casing formed in two parts meetin in a transverse to the axis and each having an plane transverse to theaxis and each aving end wall which forms an abutment for the an endwall which forms an abutment for corresponding race ring, an internal sleeve 15 the corresponding race ring, and means acuniting said parts of the casing, and means 5 cessible externally of the casing for securing accessible externally of the casing for securthe 'collar to the shaft, each race ring havin in the collar to the shaft. a spherical seat in the corresponding end 0 %(n testimony whereof I aifix my signature, the casing. p in presence of two Witnesses.

3. A ball bearing 'com rising two sets of ALBERT HIRTH. 0 balls, a collar interpose v between thetwo sets of balls, race rings having'ball races, a casing formed in two parts meeting in a plane Witnesses:

WALTER SCHWAEBSOH, RAoUL MATHEY-TORET.

is hereby certified that in Letters Patent No. 930,600, granted August 10, 1909, upon the application of Albert Hirth, of Cannstatt, Germany, for an improvement in Double-Thrust Ball-Bearings, the name of, the first-mentioned executor of the assigne was erroneously Written and printed- Alfred W. Kiddler, whereas it should have been written and printed Afo'ed TV. Eddie; and that the said Letters Patent should be read with this correction therein that the same may conforrn tothe record of the case in the Patent Ofiice. I

Signed and sealed this 17th day of May', A. D., 1910. p

- an c. 0. BILL NGs,

Acting Commissioner of Patents.

Correction in Letters Patent No. 930,600.

Correction in Letters Patent No. 930,600.

sets of balls, race rings having'ball races, a casing formed in two parts meeting in a plane the record of the case in the Patent Ofiice.

Signed and sealed this 17th day of May, A. D., 1910.

transverse to the axis and each having an end wall which forms an abutment for the corresponding race ring, an internal sleeve uniting said parts of the cas' accessible externally of the casing for securin the collar to the shaft.

hl testimony whereof I affix my signature, in presence of two witnesses.

ALBERT HIRTH.

Witnesses:

WALTER SCHWAEBsOH,

RAOUL MATHEY-TORET.

is herehy certified that in Letters Patent No. 930,600, granted August 10, 1909, upon the application of Albert Hirth, of Cannstatt, Germany, for an improyement in Double-Thrust Ball-Bearings, the name of, the first-mentioned executor of the assigne was erroneously Written and printed- Alfred W. Kiddler, whereas it should have been written and printed Afo'ed TV. Eddie; and that the said Letters Patent should be read with this correction therein that the same may conform to- C. C. BILLlNGS,

Acting Commissioner of Patents.

, and means Correction in Letters Patent No. 930,600.

It is hereby certified that in Letters Patent No. 930,600, granted A ugust 100, 1900, upon the application of Albert Hirth, of Cannstatt, Germany, for an improvement in Double-Thrust Ball-Bearings, the name of the firstmentioned executor of the assignee was erroneously Written and printed Alfred W. Kiddler, whereas it should have been written and printed Alfred W. lfidrldw; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Ofiice.

Signed and sealed this 17th day of May, A. D., 1910.

(J. C. BILLINGS,

Acting (10mm issz'onevof Patents.

[SEA n] 

